<template>
    <header class="head-nav">
        <el-row>
            <el-col :span="6" class="logo-container">
                <img src="../assets/logo.png" class="logo" alt="">
                <span class="title">云华资金管理系统</span>
            </el-col>
            <el-col :span="6" class="user">
                <div class="userinfo">
                    <img src="../assets/3.jpg" class="avatar" alt="">
                    <div class="welcome">
                        <p class="name comename">欢迎</p>
                        <p class="name avatarname">{{user.name}}</p>
                    </div>
                    <span class="username">
                        <!-- 下拉箭头 -->
                        <el-dropdown trigger="click" @command="setDialogInfo">
                            <span class="el-dropdown-link">
                                <i class="el-icon-caret-bottom el-icon--right"></i>
                            </span>
                            <el-dropdown-menu slot="dropdown">
                                <el-dropdown-item command='info'>个人信息</el-dropdown-item>
                                <el-dropdown-item command='logout'>退出</el-dropdown-item>
                            </el-dropdown-menu>
                        </el-dropdown>
                    </span>
                </div>
            </el-col>
        </el-row>
    </header>
</template>
<script>
export default {
    name:'head-nav',
    //计算属性
    computed:{
        user(){
            return this.$store.getters.user;
        }
    },
    methods:{
        //退出 个人信息
        setDialogInfo(cmdItem){
            // console.log(cmdItem)
            switch(cmdItem){
                case 'info':
                    this.showInfoList();
                    break;
                case 'logout':
                    this.logout();
                    break;
            }
        },
        //个人信息
        showInfoList(){
            console.log('个人信息')
        },
        //退出
        logout(){
          // 清除token
          localStorage.removeItem('eleToken');
          //设置 vuex store
          this.$store.dispatch('clearCurrentState');
          //跳转
          this.$router.push('/login'); 
        }
    }
}
</script>
<style scoped>
.head-nav{
    width: 100%;
    height: 60px;
    min-width: 600px;
    padding: 5px;
    color: #fff;
    background: #324057;
    border-bottom: 1px solid #1f2d3d;
}
.logo-container{
    line-height: 60px;
    min-width: 400px;
}
.logo{
    height: 50px;
    width: 50px;
    margin-right:5px;
    vertical-align: middle;
    display: inline-block;
}
.title{
    vertical-align: middle;
    font-size: 22px;
    font-family: "Microsoft YaHei";
    /* 文字的左右间距 */
    letter-spacing: 3px; 
}
.user{
    line-height: 60px;
    text-align: right;
    float: right;
    padding-right: 10px;
}
.avatar{
    width: 40px;
    height: 40px;
    border-radius: 50%;
    vertical-align: middle;
    display: inline-block;
}
.welcome{
    display: inline-block;
    width: auto;
    vertical-align: middle;
    padding: 0 5px;
}
.name{
    line-height: 20px;
    text-align: center;
    font-size: 14px;
}
.comename{
    font-size: 12px;
}
.avatarname{
    color: #409eff;
    font-weight: bolder;
}
.username{
    cursor: pointer;
    margin-right: 5px;
}
.el-dropdown{
    color: #fff;
}
</style>